The depth, pitch and other important values are typically automatically recognized through NX CAM out of the part model. They can be manually adjusted in the feature geometry dialogue.

If you have any further questions, please let me know. Maybe a good idea would be to get an initial training. Ask your reseller about it. There is also much more that you can do in NX CAM. For example Feature Based Machining, where Holes and geometries are automatically recognized and the necessary operations created.